RECA

1.7.1

Relevant Component Analysis for Supervised Distance Metric Learning

0packages depend

2.6Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Nan XiaoFirst published 2014-08-167 releasesCRAN page ↗GitHub ↗

Relevant Component Analysis (RCA) tries to find a linear transformation of the feature space such that the effect of irrelevant variability is reduced in the transformed space.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("RECA", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("nanxstats/RECA")

Development version from nanxstats/RECA. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-reca

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-RECA

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-RECA

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 45 s · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

Yes

README

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

2.6K

CRAN downloads in the past year

Rank #20,164 · ~7/day · ~220/mo

Releases R versions

Daily download trend is not available in this view yet.

23230 days

59290 days

2.6K1 year

Compare downloads with other packages →

Also on108 r2u7 autocran

Repository

GitHub ↗ nanxstats/reca

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

MASS

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 189 (55%)Rd 153 (45%)

Code characteristics

Cyclomatic complexity: 4.0 median / 4 max
Documented parameters: 100%

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

1 1 exported

Complexity

4 avg / 4 max

Call network

1 nodes / 0 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

Loading call graph…

Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (1)

Maintainer (1)

Nan Xiao

Author, Maintainer, Copyright holder

Authors (1)

Nan Xiao

Author, Maintainer, Copyright holder

Nan Xiao

Author, Maintainer, Copyright holder

Package Timeline

7 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.7.1Latest
2025-07-28 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.7
2019-05-17 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.6
2018-05-16 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.5
2018-04-20 · diff ↗
R
R 3.4.0 released · 2017-04-21
1.3
2016-11-12 · diff ↗
R
R 3.3.0 released · 2016-05-03

Show 4 earlier events

R
R 3.2.0 released · 2015-04-16
1.1
2014-12-16 · diff ↗
1.0
2014-08-16
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2014-08-16
Total releases: 7 / 12 yrs
License: GPL (>= 3) OSI
Download size: 40 KB
Installed size: not tracked yet
With dependencies: not tracked yet